Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via BTC Prediction) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Cancun: Felipe Meligeni Alves vs Luka Pavlovic | 100% |
| Completed Match | 100% |
Market context
Felipe Meligeni Alves, the Brazilian qualifier, faces Luka Pavlovic in a qualifying-round match at the Cancun tournament scheduled for 17 August 2026. The 100% crowd probability reflects either strong conviction in Alves's form or minimal liquidity depth on the Pavlovic side; either way, the market has priced the Brazilian as a near-certain winner. Settlement occurs on USDC through the platform's standard oracle mechanism, with the resolution window extending to 24 August 2026 to accommodate scheduling delays common in lower-tier professional tennis.
Qualifying matches at ATP 250 events historically show volatile outcomes despite seeding advantages. Pavlovic, a Serbian player competing in the same draw, brings unpredictable performance patterns typical of players ranked outside the top 150. Comparable qualifying upsets at Cancun and similar Mexican hard-court venues have occurred at roughly 15–20% frequency when the lower-seeded player holds recent momentum. The current 100% reading suggests either Alves carries significant recent wins or the market has simply not attracted contrarian capital.
Traders should monitor tournament draw confirmations and any last-minute withdrawals through ATP official channels in the week preceding 17 August. Weather delays at Cancun occasionally compress qualifying schedules; if the match is postponed beyond 7 days without completion, the contract resolves 50-50. Injury reports or late-stage ranking fluctuations affecting either player's seeding could shift on-chain sentiment, though the settlement window's tight closure (48 hours post-scheduled time) leaves minimal room for repricing once play begins.
Methodology
Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.
Resolution & payout
Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.
Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.
UK Frequently Asked Questions
- What does a transaction cost on Polygon?
- Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.
- Can I use Bitcoin directly?
- No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.
- Is Polymarket legal in the UK?
- Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
- Do I pay tax on prediction market profits in the UK?
- UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
- How do I deposit on Polymarket from the UK?
- UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
Trade Cancun: Felipe Meligeni Alves vs Luka Pavlovic on BTC Prediction
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